Stl - Related information

  • CPP STL queue multithreaded error message: dereferencable

    as follows, the main thread calls push () , and the second thread front () reads the head of the queue, and the team is busy when it is empty. As a result, line 11 front () reported an error deque iterator not dereferencable . After taking a look ...

    Dec.31,2021
  • How does SGI STL's memory pool reclaim chunk memory?

    In SGI STL, unused memory is mounted as a linked list in free_list . If there is enough memory in free_list , it is returned directly. However, memory recycling is not necessarily in the order in which memory is requested, which leads to the fact that...

    Nov.24,2021
  • How can allocator in the container in stl take over operator new?

    We usually new an object, and the process of requesting memory is completed by operator new, so how does allocator in stl take over operator new to complete the memory request? How is the memory request right of an object transferred? I don t think oper...

    Mar.12,2021
  • Is it possible to understand std::seed_seq? in this way?

    when learning < random > library, only seed_seq does not quite understand although I went to MSDN, and cppreference, it is not very clear that there is too little information about seed_seq on Google. my understanding is: when a given seed is not ve...

    Mar.10,2021
  • Why did the CPP standard library container add cbegin and cend methods?

    the standard library container before CPP11 overloaded constant and non-constant object versions for begin and end, and defined cbegin and cend for constant version lines in 11. 11 what is the point of doing this, that is, what is the advantage of suc...

    Mar.07,2021
  • MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
    MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7acbab-1594d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
    MySQL Errno : 1021
    Message : Disk full (/tmp/#sql-temptable-64f5-7acbab-1594d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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